After a two-month break, NBC's crime thriller returns with two back-to-back episodes on Thursday. The Blacklist left off with the revelation that Raymond Reddington's (James Spader) own bodyguard and right-hand man, Dembe (Hisham Tawfiq), may have been the one who betrayed him. The why will be revealed soon, but with Dembe on the lam, Red and his crew are working against the clock to find out the truth.

"Everybody's going to see if we can find Dembe and what he did to Red," series star Megan Boone told ET on NBC's midseason premiere red carpet in New York City last month.

The 33-year-old actress also promised that the second half of season four will throw longtime fans for a loop.

"There are so many reveals," Boone said of the return, adding that the upcoming episodes feature "exciting" developments. "We get a bit of an origin story on Mr. Kaplan (Susan Blommaert). It's one of the best episodes I've ever read on the show, so I'm exited to share that with everybody. It tells a lot about Liz's past as well -- that's something that people have been curious about. I'm excited to finally get some answers."

Boone has been keeping busy as of late, having appeared on two episodes of The Blacklist spinoff Redemption. Should the spinoff receive a second season, Boone is hopeful about having a continued presence.

​"Liz is an important part of Tom's (Ryan Eggold) life," she said. "It's hard for fans to see how he could just go off and do something on his own [without her]."

Last April, Boone welcomed her first child, daughter Caroline, with partner Dan Estabrook, and she opened up about being a first-time mother while working on a successful TV show.

​"Everybody says how hard it is, how tired you are -- it's all true! But it's also really fun. Being a parent is so fun," she marveled. "Maybe it's my kid. I got a beautiful, healthy, happy baby girl and I count my blessings everyday. She just brightens up my whole world. It's been easy to adjust to that."

She admitted that parenthood has been an adjustment, sharing that she and Estabrook have a system down. "It's a lot of shared calendars. You need a Rolodex of babysitters. You need a deep bench!" Boone said.

As for how motherhood has changed her, she offered this: "Just the profound love and the opportunity to be a part of creating a whole new life is mind-bending and really opens your heart and it's been the best thing that's ever happened to me.​"

The Blacklist returns Thursday for a two-hour spring premiere at 9 p.m. ET/PT on NBC.​